Bug #23537: libceph: monX xxxxxx session lost, hunting for new mon - Linux kernel client - Ceph

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Bug #23537

closed

libceph: monX xxxxxx session lost, hunting for new mon

Added by Марк Коренберг about 6 years ago. Updated almost 6 years ago.

Status:

Resolved

Priority:

Normal

Assignee:

Ilya Dryomov

Category:

libceph

Target version:

% Done:

Source:

Community (user)

Tags:

Backport:

Regression:

Severity:

3 - minor

Reviewed:

Affected Versions:

Ceph - v12.2.2

ceph-qa-suite:

kcephfs

Crash signature (v1):

Crash signature (v2):

Description

maybe connected with #17664

I use Luminous 12.2.2 on both client and cluster. Kernel at cephfs client: Linux mmwork 4.13.0-37-generic #42-Ubuntu SMP Wed Mar 7 14:13:23 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux.

I don't know if same bug, but symptoms are exactly the same. Many lines in dmesg like:

```
[Sun Apr 1 23:37:05 2018] libceph: mon0 10.80.20.99:6789 session established
[Sun Apr 1 23:37:36 2018] libceph: mon0 10.80.20.99:6789 session lost, hunting for new mon

[Sun Apr 1 23:37:36 2018] libceph: mon2 10.80.20.103:6789 session established
[Sun Apr 1 23:38:07 2018] libceph: mon2 10.80.20.103:6789 session lost, hunting for new mon

[Sun Apr 1 23:38:07 2018] libceph: mon1 10.80.20.100:6789 session established
[Sun Apr 1 23:38:37 2018] libceph: mon1 10.80.20.100:6789 session lost, hunting for new mon

[Sun Apr 1 23:38:37 2018] libceph: mon2 10.80.20.103:6789 session established
[Sun Apr 1 23:39:08 2018] libceph: mon2 10.80.20.103:6789 session lost, hunting for new mon

[Sun Apr 1 23:39:08 2018] libceph: mon1 10.80.20.100:6789 session established
[Sun Apr 1 23:39:39 2018] libceph: mon1 10.80.20.100:6789 session lost, hunting for new mon

[Sun Apr 1 23:39:39 2018] libceph: mon0 10.80.20.99:6789 session established
[Sun Apr 1 23:40:09 2018] libceph: mon0 10.80.20.99:6789 session lost, hunting for new mon

[Sun Apr 1 23:40:09 2018] libceph: mon1 10.80.20.100:6789 session established
[Sun Apr 1 23:40:40 2018] libceph: mon1 10.80.20.100:6789 session lost, hunting for new mon

[Sun Apr 1 23:40:40 2018] libceph: mon0 10.80.20.99:6789 session established
[Sun Apr 1 23:41:11 2018] libceph: mon0 10.80.20.99:6789 session lost, hunting for new mon

[Sun Apr 1 23:41:11 2018] libceph: mon2 10.80.20.103:6789 session established
[Sun Apr 1 23:41:42 2018] libceph: mon2 10.80.20.103:6789 session lost, hunting for new mon
```

Please note timeouts values: every 30 seconds. this timeout was mentioned in linked task.